Webmail and Exchange 2003

I want to setup Webmail for all my users so that they can access there mail from the internet. I've installed exchange 2003 server, the installation is was successful. I have 3 servers 1 PDC, 2 BDC with exchnage 2003 installed and a web server. All OS are Windows 2003. PDC,BDC are both Windows 2003 Enterprise Servers, Webserver is Windows 2003 Web Server. I've created a website on the webserver that redirects the url requets to the mail server and it works fine. But I can't get it from the internet. I have a static external IP. The mail server can send/receive mail no problem. I just can't access webmail from the internet. Am I missing something.

The Exchange server needs to be accessible directly from the Internet. All traffic will go from the client directly to the Exchange server - it cannot go via the other server.
This will usually mean a different URL - something like mail.domain.com or similar.

You will need to set that up on your external servers as well. Either you need to do this or your ISP - depends who manages your domain name. www.webmail.domain.com will need its own IP address on the firewall and the firewall adjusted as required.

I've got an external ip 165.228.115.155 and I'm using a Netgear ADSL Firewall/Router how can I use the second IP won't it corrupt my settings because everything is working fine I have mail and four websites running of the single IP and I also have an ftp as well. How ca I setup exchange for another IP thats just for webmail?

The other option, and its a more secure option, it to use ISA Server 2000 or 2004 to do reverse proxying to both you web server and your Exchange server.

Ideally ISA would be in your firewalls DMZ, but it is also valid to have it on the Internal network. Redirect all web traffic to this box and then use web publishiing rules to proxy these requests to the relevant server.

There is more to it than this, but doing a search on google for "publish owa isa 2000" or "publish owa isa 2004" will give you plenty of results.

You should also use a web SSL certificate to publish OWA as otherwise the users credentials are passed over the Internet in plain text. With a certificate in place, you can also enable OWA Forms Based Authentication which can make logging in easier for your users.

I would have to debate on whether ISA is a "more secure" option... It also means an additional purchase.

The only way I can think of to work around a single IP address problem is to use a different port. OWA gets upset if you try to use any other port than 80 or 443 - so if non of the other web sites are using SSL/HTTPS then I would purchase a SSL certificate for OWA and then use port forwarding on your router to send traffic for HTTPS to the Exchange server.
If the users aren't bright enough to remember to https://webmail.domain.com/ (instead of http://webmail.domain.com/) then there is a trick you can do to redirect traffic for http:// to https:// - sending them to the correct address.

I saw every thing ready to access your web mail from internet and I think your web server is configured to use port 80. So, all you need is to change the PORT in (default web site) in IIS of exchange server to any other port . for example 81

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Changing the port is all well and good.
Except I have seen OWA break when you try to use other ports. It doesn't like using anything other than 80 and 443. There are postings on this very forum from people who have tried to use other ports, got problems, put it back to 80 and it has been fine.
Then users have to remember to put the :81 on the end of the URL. That will not go down very well - especially if a manager doesn't like it.

www.buzzwig.com is hosted on my windows 2003 webserver, all my servers are running windows 2003 my Exchange server is on another windows 2003 Enterprise server and I'm running IIS6. My webserver is the only one physically connected to the outside world. What I want to do is create a website on my webserver ie www.webmail.buzzwig.com and point it to my mailserver http://mailsrv/exchange by using url redirections. Can I do this.

mmm.....
So, at your case you cannot use the link like ( www.webmail.buzzwig.com ) , but You Can use this link as a short url link (http://buzzwig.com/webmail).
the steps to do is:
1- change the port as explained before.
2- create policy in ADSL router/firewall as explained.
<HERE, make sure every thing are working fine before you go to 3>
3- On IIS at your web server, create new virtual directory on your web site and give it the name ¨webmail¨.
4- on properties , at virtual directory Tap, select : ¨A redirction to a URL¨ then in rediction box type:http://<your_exchange_server_name>.buzzwig.com:81/exchange OR http://buzzwig.com:81/exchange

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